package org.example.lotterysystem.common.interceptor;

import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.example.lotterysystem.common.utils.JWTUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
@Component
public class LoginInterceptor implements HandlerInterceptor {
    private static final Logger logger = LoggerFactory.getLogger(LoginInterceptor.class);
    /**
     * 预处理，业务请求之前调用
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //获取请求头
        String token = request.getHeader("user_token");
        logger.info("获取token:{}",token);
        logger.info("获取路径:{}",request.getRequestURI());
        //令牌解析
        Claims claims = JWTUtil.parseJWT(token);
        if(null == claims){
            logger.error("解析JWT令牌失败！");
            response.setStatus(401);
            return false;
        }
        logger.info("解析令牌成功!放行");
        return true;
    }
}
